GN: Introduce templates.

webrtc/pc/BUILD.gn

Index: webrtc/pc/BUILD.gn
diff --git a/webrtc/pc/BUILD.gn b/webrtc/pc/BUILD.gn
index 906d99575b05c9bc1983e4f6dd96fcd7aade0be2..3b4611b3a88aabc81302228f16dbaebe4e7ee0d5 100644
--- a/webrtc/pc/BUILD.gn
+++ b/webrtc/pc/BUILD.gn
@@ -7,7 +7,6 @@
 # be found in the AUTHORS file in the root of the source tree.
 
 import("../build/webrtc.gni")
-import("//testing/test.gni")
 
 group("pc") {
   deps = [
@@ -23,7 +22,7 @@ config("rtc_pc_config") {
   ]
 }
 
-source_set("rtc_pc") {
+rtc_source_set("rtc_pc") {
   defines = []
   sources = [
     "audiomonitor.cc",
@@ -72,7 +71,7 @@ source_set("rtc_pc") {
 
   if (is_clang) {
     # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
-    configs -= [ "//build/config/clang:find_bad_constructs" ]
+    suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
   }
 }
 
@@ -86,7 +85,7 @@ if (rtc_include_tests) {
     }
   }
 
-  test("rtc_pc_unittests") {
+  rtc_test("rtc_pc_unittests") {
     testonly = true
 
     sources = [
@@ -109,7 +108,7 @@ if (rtc_include_tests) {
 
     if (is_clang) {
       # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
-      configs -= [ "//build/config/clang:find_bad_constructs" ]
+      suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
 
     if (is_win) {